Abstract: An end-to-end congestion control mechanism, i.e., a-TFRC (ameliorated TFRC), is presented, which is TCP-friendly and based on RTCP feedback. In view of that the real-time streaming media need short delay and short-term jitter, the slow start-up phase of a TFRC is improved to enable the initial sending rate of TFRC flow not to be so low that the delay and jitter begin to lengthen at receiving end. Simulation result shows that the proposed mechanism improves the streaming media throughput and QoS so as to ensure the amicability of TCP flow.